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HP Envy 34 All In One - Monitor Brightness for HDMI In

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HO Envy 34 All in One b172a
Microsoft Windows 10 (64-bit)

Hi all,


I have recently purchased a second hand HP Envy All in One Desktop 34 (b172a). The previous owner has reset the PC and hence all the original HP softwares were also deleted.


When I connected my work laptop to the Envy All in One desktop, i wasn't able to adjust the brightness of the screen. It was so bright that I can't even open my eyes properly. I have re-installed the HP Display Control software but doesn't seem to help.


When I switched the source to my work laptop (i.e. press the HDMI In button or press ctr+shift+s+d), I attempted to adjust the monitor settings by pressing enter. Unfortunately, the "color", "contrast" and "brightness" buttons are all greyed out and wouldn't allow me to adjust.


Much appreciate if someone could point me to the right direction to fix. Spoke to HP support over whatsapp but wasn't really helpful. Thanks !













HP Support Agent
HP Support Agent
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@TimothyTam Welcome to HP Community!


I understand that you are unable to adjust the brightness.


You could disable adaptive brightness to resolve this issue. Here are the steps to disable it:

  1. Go to Control Panel > Hardware and Sound > Power Options, then click on "Change plan settings" next to your active power plan.
  2. Click on "Change advanced power settings."
  3. Scroll down to Display, then under Enable adaptive brightness, switch it off for both the battery and plugged in modes.

Update BIOS: Follow steps from the link: Click here


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Give us a virtual high-five by clicking the 'Thumbs Up' icon below, followed by clicking on the "Accept as solution" on this post, 

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